I've been trying to get myst 3 to work on windows 10 and this seems to be the closest I've come. I think i have all the files in the right place and it seems to have everything but when I go to play it it say that the M3.exe is encrypted. Now I've tried the English patch but Im not sure if its working or if its what I need or if im doing it correctly. Does anyone have an un-encrypted M3.exe file or where i can download one? I was able to find them for every language except English.

Okay I was messing with the setting and tried it running the capability trouble shooter again and it worked all of a sudden the windows XP service pack, think maybe using the patch and a reboot might have fixed it for me. thanks to those who tried to help, i'm an idiot so I have no idea how to do any of this stuff so its nice to know people will take the time to offer some advise. I'll be back if things stop working.